(Reaffirmed 2002) IS : 4565 - 1966 Indian Standard SPECIFICATION FOR FIRECLAY STOPPERS Refractories Sectional Committee, SMDC 18 Chaimzan &RI J. C. BANERJEE Mem bus DR D. N. NANDI (Alternate to Shri J. C. Banerjee ) SHRI R. V. BP~~NDOOR SHRI H. N. BANERJEA ( Altematr SHRI H. V. BHA~KAR RAO DR K. PRABHU( Alternate ) DR S. BHATTACHARYA Central Representing Glass & Ceramic ( CSIR ), Calcutta Research Institute I The Associated Cement Companies Ltd, Bombay ) Bird & Co Private Ltd, Calcutta Directorate General, Ordnance Factories ( Ministry of Defence ), Calcutta SHRI D. K. CHAKRAVARTY( Alternate ) Directorate General of Technical Development, SHRI D. S. CHABHAL New Delhi Hindustan Steel Ltd ( Bhilai Steel Plant ). Bhilai SHRI M. CHANDRASEKHAR SHRI S. K. M~JX-IERJEE ( Alternate ) M. N. Dastur & Co ( Private) Ltd, Calcutta SHRI D. K. CHATTERJEE CHEMIST AND METALLURGIST ( SF ), Ministry of Railways LOCOMOTIVE CHITTARANJAN WORKS, CHITTARANJAN ASSISTANT DIREC;~;~~~~ RESEARCH, & S ), AND Orissa Cement Ltd, Rajgangpur SHRI M. H. DALM~A DR J. D. PANDA (Alternate) National Test House, Calcutta SHRI G. C. DAS SHRI N. C. SENGUPTA ( Alternate ) DEPUTY DIRECTOR OF MARINE Naval Headquarters, New Delhi ENGINEERING ( DESIGN ), NEW DELHI ASSISTANT DIRECTOR ( ENGINEERING ), NEW DELHI ( Alternate ) The Parshuram Pottery Works Co Ltd, Morvi SHRI ACHWT A. GANPULE SHRI V. H. AGA~HE (Alternate ) STANDARDS ORGANIZATION, LUCKNOW ( Alternate ) DR S. S. GHOSE Belpahar Refractories Ltd, Belpahar DR A. K. BOSE ( Alternate) Indian Iron & Steel Co Ltd, Burnpur SHRI K. K. GUPTA ROY SHRI B. N. CHATTERJEE ( Alternate ) All India Glass Manufacturers' Federation, New Delhi SHRI K. P. JHUNJHUNWALA SHRI R. C. SINGHAL( Altemate) Bhupal Mining Works, Bhilwara SHRI K. L. MATHUR SHRI D. P. MATHUR (Alternate ) ( Continued on page 2 ) INDIAN MANAK BHAVAN, STANDARDS 9 BAHADUR NEW DELHI SHAH 1 INSTITUTION ZAFAR MARG IS:4565-1966 ( Continucdjiom page 1 ) Members DR H. K. MITRA DR G. N. MOHANTY In personal capacity Rcfiresenting ( P 16/lB, Keyatala Lane, SHRI B. RAMACHANDRAN ( Alternate ) SHRI S. L. MOITRA Orissa Industries Ltd, Rourkela SHRI B. K. MUKHERJEE Reliance Firebricks & Pottery Co Ltd, Calcutta SHRI K.N. MUKHERJEE The Behar Firebricks & Potteries Ltd, Dhanbad SHRI S. N. RANERJEB (Alternate) SHRI H. P. S. MURTHY Metallurgical National Laboratory ( CSIR ), Jamshedpur SHRIP.S. NARAYANA The Engineering & Mineral Industrial Research Laboratory, Bangalore SHRI P. K. PAUL Hindustan Steel Ltd (Durgapur Steel Plant), Durgapur SHRI J. R. K. MURTHY ( Altcmate ) DR B. RAO The Tata Iron & Steel Co Ltd, Jamshedpur SHRI D. K. RAY Inspection Wing, Directorate General of Supplies & Disposals ( Ministry of Works, Housing & SUPPlY ) SHRI B. B. BANERJEE (Alternate) Hind Refractories Ltd, Calcutta SHRI A. c. SEN SHRI G. SA~IA ( Alternate ) SHRI D. R. SUBRAMANIAN Burn & Co Ltd, Calcutta SHRI K. N. MARWAHA (Alternate) Hindustan Steel Ltd (Rourkela Steel Plant), SHRI P. S. SUNDARAM Rourkela SHRI M. PRA~AD ( Al&mate ) Director General, IS1 ( Ex-o&o Member ) DR A. K. CHAX~RJEE, Director ( Strut & Met ) Hindustan Steel Ltd ( Central Engineering & Design Bureau ), Ranchi Cdcufta 29 ) Secretary SHRI R. K. SRIVASTAVA Deputy Director ( Met ), IS1 Refractories Convener SHRI J. C. BANERJEE Cent~~~u~;~ & Ceramic Research Institute ( CSIR ), Investigations Subcommittee, SMDC 18 : 3 Members DR D. N. NANDI (Alternate to Shri J. C. Banerjee ) Hindustan Steel Ltd ( Alloy Steels Project ), Durgapur SHRI I. B. BANERJEE Indian Refractory Makers Association, Calcutta SHRI D. GOPALAKR~SHNAN DR J. D. PANDA ( Alternate) Indian Iron & Steel Co Ltd, Bumpur SHRI K. K. GUPTA ROY SHRI D. N. BANERJEE ( Alternate ) National Metallurgical Laboratory ( CSIR ), SHRI ,H. P. S. MURTHY Jamshedpur The Tata Iron & Steel Co Ltd, Jamshedpur DR B. RAO Bum & Co Ltd, Calcutta SHRI D. R. SUBRAMANIAN SHRI K. N. MARWAHA ( Altcrnatc ) 2 IS : 4565.1968 Indian Standard SPECIFICATION FOR FIRECLAY STOPPERS 0. FOREWORD 0.1 This Indian Standard was adopted by the Indian Standards Institution on 30 April 1968, after the draft finalized by the Refractories Sectional Committee had been approved by the Structural and Metals Division Council. 0.2 Stopper is equally an important refractory component as the nozzle in order to permit teeming of entire cast of metal at a constant rate without splashing on the sides of ingot mould and without contaminating the metal. Since IS : 4564-1968* specifies high refractory fireclay nozzles, it has been decided to cover fireclay stoppers with higher refractoriness than the fireclay nozzles in that standard to have a tight fit seat. 0.3 This standard keeps in view the followed in the country in this field. 0.4 This standard contains clause 8.1 the purchaser and the manufacturer. manufacturing which and trade practices between calls for agreement 0.5 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1960t. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. 1. SCOPE 1.1 This standard 2. SUPPLY 2.1 General covers the requirements for fireclay stoppers. OF MATERIAL shall be requirements relating to the supply of fireclay stoppers as laid down in IS : 1387-1967$. *Specification for fireclay nozzles. tRules for rounding off numerical values ( revised ) . $General requirements for the supply of metallurgical materials (&t revision). 3 IS : 4565 - 1968 2.2 The refractories shall be compact, of homogeneous texture and free from cracks, voids and other flaws. They shall be burnt evenly throughout, shall have no soft corners and shall have sufficieni.mechanical strength. 3. SAMPLING \ 3.1 Representative samples shall be drawn according to the scheme of sampling given in IS : 1528-1962' for carrying out tests specified in this standard. 4. TOLERANCE ON SIZE 4.1 Variation from specified dimensions covering both warpage and shrinkage shall be allowed to the extent of f 1 percent or & 1 mm whichever is greater. 5. TYPES 5.1 Fireclay stoppers shall be of the following two types, namely, Type 1 and Type 2. 6. CHEMICAL COMPOSITION 6.1 If required, the alumina content of Type 2 Fireclay Stoppers, when determined in accordance with the methods specified in IS : 1335-19591_ or IS : 1527-1960$, shall be not less than 40 percent. 7. PHYSIC&L TEST REQUIREMENTS 7.1 The fireclay stoppers, when tested according to the methods given in IS : 1528-1962*, shall conform to the requirements given below: Characteristic rRequirement * s Pyrometric cone equivalent, ASTM Cone No., Min Apparent porosity, percent, Max Permanent linear change after heating for 1 hour, percent, Max *Methods tMethods JMethods for the direct determination of chemical Type 1 30 24 Type 2 31 24 At 15OO"C, 1 At 155O"C, I.5 of sampling and physical tests for refractory materials. of alumina in refractory materials materials. ( tentative). analysis of fireclay and silica refractory 4 IS t 4565 - 1968 8. SPALLING 8.1 If required, requirements RESISTANCE the refractories shall be tested for spalling resistance as agreed to between the purchaser and the manufacturer. 9. MARKING 9.1 The refractories or trade-mark shall be clearly and type of material. may marked with the manufacturer's with the IS1 name 9.1.1 The Mark. refractories also be marked Certification NOTE - The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks ) Act, and the Rules and Regulations made thereunder. Presence of this mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard, under a well-defined system of inspection, testing and quality control during production. This system, which is devised and supervised by IS1 and operated by the producer, has the further safeguard that the products as actually marketed are continuously checked by IS1 for conformity to the standard. Details of conditions, under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution. 5 INDIAN STANDARDS ON Refractories IS: Specifications 6-1967 74967 8-1967 195-1963 483-1953 484-1958 1292-1958 1522-1967 1523-1960 + 15241968 1525-1968 1526-1960 1529-1961 1748-1961 1749-1961 1750-1961 1751-1968 2042- 1963 2043-1963 2044-1962 2045- 1962 3304-1965 3305-1965 Methods 1335-1959 1527-1960 1528-1962 Moderate heat duty fireclay refractories, group `A' ( third revision ) 2.00 2.00 2.00 1.00 1.50 2.00 1.00 2.00 1.50 2.00 1.50 1.50 1.00 1.00 1.00 2.00 1.00 1.00 1.50 1.00 . . Rs Moderate heat duty fireclay refractories, group `B' ( third revision ) High heat duty fireclay refractories ( third revision) mortar Fireclay ( second revision) for laying fireclay ... `.' bricks refractory ... ... .. . . .. .. . .. . . .. . .. ... .. . ... ... .. . .. . . .. . .. ... . .. . .. *.. .. . .. . . .. ... ... . .. ... .. . . .. . .. .. . .. . .. . ..a Fireclay refractories for oil-fired ( tentative ) ( under r&&ion ) . .. boiler furnaces of naval ships Silica refractories for general purposes ( revised ) Mortar for laying silica bricks Fireclay glass tank furnaces (first revision ) Bottom pouring refractories for steel plants Refractory sleeves (first revision) . .. .. . Ladle refractories for steel plants (Jirst revision ) Sizes and shapes for firebricks Blast furnace refractories for steel plants . . . Sizes of graphite crucibles . .. . .. .. . . .. . .. Magnesite refractories for steel plants Dead-burned pea magnesite Fireclay cupola refractories (jirst revision ) Insulating refractories Siliceous fireclay refractories . . . . .. . .. .. . . .. . . . . . . Sillimanite refractories for glass melting tank furnaces Natural sillimanite blocks for glass melting tank furnaces Burnt magnesite-chrome Burnt chrome-magnesite of Test Methods for the direct determination ... materials ( tentative ) Methods of chemical materials ... refractories for general purposes refractories for general purposes . . . ..I . 1.00 1.00 of alumina in refractory ... ... ... 3.00 5.50 6.00 analysis of fireclay and silica refractory . .. .. . . .. . .. Methods of sampling and physical tests for refractory materials . . . *Under print.